diff options
Diffstat (limited to 'internal/util/regexes.go')
| -rw-r--r-- | internal/util/regexes.go | 79 |
1 files changed, 69 insertions, 10 deletions
diff --git a/internal/util/regexes.go b/internal/util/regexes.go index 60b397d86..a59bd678a 100644 --- a/internal/util/regexes.go +++ b/internal/util/regexes.go @@ -18,19 +18,78 @@ package util -import "regexp" +import ( + "fmt" + "regexp" +) + +const ( + minimumPasswordEntropy = 60 // dictates password strength. See https://github.com/wagslane/go-password-validator + minimumReasonLength = 40 + maximumReasonLength = 500 + maximumEmailLength = 256 + maximumUsernameLength = 64 + maximumPasswordLength = 64 + maximumEmojiShortcodeLength = 30 + maximumHashtagLength = 30 +) var ( // mention regex can be played around with here: https://regex101.com/r/qwM9D3/1 - mentionRegexString = `(?: |^|\W)(@[a-zA-Z0-9_]+(?:@[a-zA-Z0-9_\-\.]+)?)(?: |\n)` - mentionRegex = regexp.MustCompile(mentionRegexString) + mentionFinderRegexString = `(?: |^|\W)(@[a-zA-Z0-9_]+(?:@[a-zA-Z0-9_\-\.]+)?)(?: |\n)` + mentionFinderRegex = regexp.MustCompile(mentionFinderRegexString) + // hashtag regex can be played with here: https://regex101.com/r/Vhy8pg/1 - hashtagRegexString = `(?: |^|\W)?#([a-zA-Z0-9]{1,30})(?:\b|\r)` - hashtagRegex = regexp.MustCompile(hashtagRegexString) - // emoji regex can be played with here: https://regex101.com/r/478XGM/1 - emojiRegexString = `(?: |^|\W)?:([a-zA-Z0-9_]{2,30}):(?:\b|\r)?` - emojiRegex = regexp.MustCompile(emojiRegexString) + hashtagFinderRegexString = fmt.Sprintf(`(?: |^|\W)?#([a-zA-Z0-9]{1,%d})(?:\b|\r)`, maximumHashtagLength) + hashtagFinderRegex = regexp.MustCompile(hashtagFinderRegexString) + // emoji shortcode regex can be played with here: https://regex101.com/r/zMDRaG/1 - emojiShortcodeString = `^[a-z0-9_]{2,30}$` - emojiShortcodeRegex = regexp.MustCompile(emojiShortcodeString) + emojiShortcodeRegexString = fmt.Sprintf(`[a-z0-9_]{2,%d}`, maximumEmojiShortcodeLength) + emojiShortcodeValidationRegex = regexp.MustCompile(fmt.Sprintf("^%s$", emojiShortcodeRegexString)) + + // emoji regex can be played with here: https://regex101.com/r/478XGM/1 + emojiFinderRegexString = fmt.Sprintf(`(?: |^|\W)?:(%s):(?:\b|\r)?`, emojiShortcodeRegexString) + emojiFinderRegex = regexp.MustCompile(emojiFinderRegexString) + + // usernameRegexString defines an acceptable username on this instance + usernameRegexString = fmt.Sprintf(`[a-z0-9_]{2,%d}`, maximumUsernameLength) + // usernameValidationRegex can be used to validate usernames of new signups + usernameValidationRegex = regexp.MustCompile(fmt.Sprintf(`^%s$`, usernameRegexString)) + + userPathRegexString = fmt.Sprintf(`^?/%s/(%s)$`, UsersPath, usernameRegexString) + // userPathRegex parses a path that validates and captures the username part from eg /users/example_username + userPathRegex = regexp.MustCompile(userPathRegexString) + + inboxPathRegexString = fmt.Sprintf(`^/?%s/(%s)/%s$`, UsersPath, usernameRegexString, InboxPath) + // inboxPathRegex parses a path that validates and captures the username part from eg /users/example_username/inbox + inboxPathRegex = regexp.MustCompile(inboxPathRegexString) + + outboxPathRegexString = fmt.Sprintf(`^/?%s/(%s)/%s$`, UsersPath, usernameRegexString, OutboxPath) + // outboxPathRegex parses a path that validates and captures the username part from eg /users/example_username/outbox + outboxPathRegex = regexp.MustCompile(outboxPathRegexString) + + actorPathRegexString = fmt.Sprintf(`^?/%s/(%s)$`, ActorsPath, usernameRegexString) + // actorPathRegex parses a path that validates and captures the username part from eg /actors/example_username + actorPathRegex = regexp.MustCompile(actorPathRegexString) + + followersPathRegexString = fmt.Sprintf(`^/?%s/(%s)/%s$`, UsersPath, usernameRegexString, FollowersPath) + // followersPathRegex parses a path that validates and captures the username part from eg /users/example_username/followers + followersPathRegex = regexp.MustCompile(followersPathRegexString) + + followingPathRegexString = fmt.Sprintf(`^/?%s/(%s)/%s$`, UsersPath, usernameRegexString, FollowingPath) + // followingPathRegex parses a path that validates and captures the username part from eg /users/example_username/following + followingPathRegex = regexp.MustCompile(followingPathRegexString) + + likedPathRegexString = fmt.Sprintf(`^/?%s/%s/%s$`, UsersPath, usernameRegexString, LikedPath) + // followingPathRegex parses a path that validates and captures the username part from eg /users/example_username/liked + likedPathRegex = regexp.MustCompile(likedPathRegexString) + + // see https://ihateregex.io/expr/uuid/ + uuidRegexString = `[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}` + + statusesPathRegexString = fmt.Sprintf(`^/?%s/(%s)/%s/(%s)$`, UsersPath, usernameRegexString, StatusesPath, uuidRegexString) + // statusesPathRegex parses a path that validates and captures the username part and the uuid part + // from eg /users/example_username/statuses/123e4567-e89b-12d3-a456-426655440000. + // The regex can be played with here: https://regex101.com/r/G9zuxQ/1 + statusesPathRegex = regexp.MustCompile(statusesPathRegexString) ) |